Camera.



PATENTED JUNE 23, 1903.

C. BORNMANN.

CAMERA.

APPLICATION FILED MAR. 7, 1903.

X0 MODEL UNITED STATES Patented June 23, 1903.

PATENT OEEIcE.

CARL BORNMANN, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE ANTHONY doSCOVILL COMPANY, OF NEVs YORK, N. Y., A CORPORATION.

CAMERA.

SPECIFICATION forming part of Letters Patent N 0. 731,537, dated June23, 1903.

Application filed March 7, 1903.

T aZZ whom it may concern.-

Be it known that I, CARL BORNMANN, a citizen of the United States, and aresident of the city of New Haven, county of New Haven,

State of Connecticut, haveinvented new and useful Improvements inCameras, of which the following is a specification, reference being hadto the accompanying drawings, in which- Figure 1 illustrates alongitudinal vertical section of the invention. Fig. 2 illustrates aview in elevation of the interior frame carryiug most of the operativeparts and showing the construction of the metallic plate andspring-acting spool-supports cut therefrom. Fig. 3 illustrates a view ofthe plate and spring-acting spool-supports cut therefrom, taken frombelow.

My improvements relate to that form of camera in which there is aninterior frame removable from the exterior box or camera proper andwhich supports and carries the supply and receiving spools which supportthe More particularly specified, the improvements relate to deviceswhereby the interior frame may be readily inserted and locked within theexterior box of the camera proper and easily removed therefrom for theremoval and insertion of spools and when removed the spools are exposedon all sides except one, whereby they may be more convenientlymanipulated than heretofore.

The invention also includes improved devices for receiving and holdingthe spools when the interior frame is removed, and the construction issuch that the lens is carried by the removable frame, so that it iswithdrawn from the camera-box with the frame and may be more easily andefficiently cleaned than heretofore.

Referring to the drawings, A illustrates the exterior box or casing ofthe camera proper. It may be made in any of the various forms 45 nowcommonly employed.

B is the lens-opening in the interior box or Serial No. 146,793. (Nomodel.)

casing proper of the camera, through which light passes to the lens. Asuitable diaphragm and shutter are provided for this opening, as usual.

B is the usual peep-hole, protected by rubyglass or its equivalent, inthe hinged rear end of the camera-box.

C is the interior frame. It is made with top and bottom pieces D and D,respectively, which are preferably square in outline, as usual, with.two inclined sides pieces E and E and a front piece or narrow verticalstrip F, within which the lens G is located, as usual. At the rearcorners of the side pieces E and E are located the usual guide-rollers Hand H.

I and l are the two spools, which, as shown, are not inclosed in any boxor confining device. On the contrary, when the frame is removed from thecamera-box they are accessible from all sides except that on which theinclined side pieces or partitions E and E are located. I

Jis the ordinary spindle for the windingspool, having a squared lowerend. K is the cross-barthereof.

L is a plate fastened to the outside of the camera box, through whichthe spindle J passes.

M is the collar of the spindle, and N is the spring between the collarand the plate L, which normally tends to press the spindle inwardly.

O is a circular and revoluble metallic block or journal set in acircular recess in the top board D of the interior frame. It has asquarerecess in its upper side to fit the end of the spindle K and isconnected with a ratchetpinion P, with which engages a fixed pawl Q.Theinward terminal R of the spindle projects so as to enter a recess inthe end of the spool, audit is provided with pins S, (one onlybeingshown in' the drawings, owing to the perspective of the view,) soas to effect the rotation of the spool in a manner well understood. 0

T is a little metallic plate, which is fastened in any suitable mannerin an inclined recess U, made in the upper board D of the interiorframe. The upper end of this metallic plate is flush with the top of themetallic block 0.

Fastened on the under side of the interior frame and in such position asto properly register with the other parts to form a support for thespools is a metallic plate a, from which are out two tongues or arms I)b, which are thrown upwardly, as shown, by the rising section 0 thereof.(See Fig. 2.) Near the ends of these spring-tongues are rigidly attachedstuds 61 d, which are adapted to engage with recesses in the lower endsof the spools, respectively.

e is a trunnion or center, upon which the supply-spool is pivoted at theupper end, as usual.

The operation of the apparatus is as follows: Assume that the camera hasbeen used to such an extent that the film within it has been exhaustedand it is desired toreplace the used film with an unexposed one. Thedoor at the rear end of the camera-box proper is opened, as usual,either by unfastening its latch and swinging it aside upon its hinges orby disconnecting it from the camera, as its construction may require.Thereupon the operator takes hold of the winding-spindle J K and liftsit upwardly, compressing the spring N, whereby the inner squared end orterminal of the spindle will be lifted from the correspondingly-shapedrecess in the block 0. Thus the interior frame will be free from lookingengagement with the camerabox proper and may be pulled rearwardly outthrough the open door and separated from the camera. Thereupon the usedspool may be removed by taking hold of it and pressing downwardlythereon, which compresses the spring 0 at the left-hand side of theinterior frame, as shown in Fig. 2, thus disengaging the upper journal 6from the upper end of the spindle, whereupon it may be swung out wardlyand removed from the frame. By a reversal of these operations a new fullspool may be substituted for the exhausted one removed, as above stated.

It will be noted that when the frame has been removed from thecamera-box the spools are more openly exposed for manipulation than incameras heretofore made; also, that the spring tongues or arms I) b notonly afford proper support for the spools and enable them to be readilyremoved when substitution is necessary, but also that owing to theresilient character of these arms or tongues they maintain the spoolsunder a condition of slight compression, (the degree of compression maybe such as desired,) whereby all lost motion is taken up and anyrattling of the parts of the apparatus is avoided; furthermore, that theplate a serves as a brace or reinforcing medium for the front of theinterior frame, thus materially strengthening it, and the arms of thisplate a coacting with the spring sustained spindle J K afiord, takentogether, means whereby the spools may be held and manipulated and theframe which carries theminserted Within and removed from the camera-boxproper in a poculiarly desirable manner.

To reinsert the removable frame, the rear door of the camera being ofcourse open the frame is introduced and shoved in from the rearforwardly. It is not necessary to manually manipulate the spindle J uponthe reinsertion of the removable frame, because during that operation itis entirely automatic in action. As the removable frame approaches itsproper position within the camera box proper the inwardly-projectingsquared end of the spindle engages with the inclined plate T, locatedwithin the recess U, and the in-' ward movement of the frame beingcontinued the spindle rides upon the inclined plate T until finally theend of the spindle, leaving the inclined plate, rides over the surfaceof the metallic block Ountil the end of the spindle registers with therecess in that block, and thereupon under the action of the spring N itdrops into the said recess, and the interior frame is locked in positionand the spindle automatically connected with the journal of the Windingspool, whereby it may be turned.

It will be obvious to those who are familiar with this art thatmodifications may be made in the details of construction of the partsinvolved without departing from the essentials of my improvements. Itherefore do not limit myself to the details of construction which Ihave described and: illustrated merely as one form, and a desirableform, in which my improvements may be made.

I claim 1. In a camera the combination of a removable spool-carryin ginner frame provided with ratchet mechanism for the Winding-spool, aspring-actuated winding device which automatically engages with theratchet mechanism on the insertion of the removable frame within thecamera and a spring-actuated support for the lower end of said spool.

2. In a camera the combination of a removable spool-carrying inner frameprovided with ratchet mechanism for the winding-spool, a spring-actuatedwinding device which automatically engages with the ratchet mechanism onthe insertion of the removable frame within the camera and locks saidframe therein and a spring-actuated support for the lower end of thespool.

3. In a camera the combination of a removable spool-carrying innerframe, a spring-actuated winding device adapted to engage with theremovable frame and lock the same within the camera.

4. In a camera the combination of a removable spool-carrying inner framea spring-actuated winding device carried by the camera proper and meansupon the removable frame said metallic plate and journals for the lowerwhereby upon its insertion within the camera ends of the spools mountedupon said elastic the Winding devices will automatically engage tongues.therewith. In testimony whereof I have signed my 5 5. In a camera thecombination of aremovname to this specification in the presence of :5

able inner spool-carrying frame, a metallic two subscribing witnesses.

plate attached to said frame, and removable CARL BORNMANN. therewith,journals for the upper ends of the Witnesses: spools, means to rotatethe'winding-spool and JOHN ELLIOTT,

IO upwardly-curved elastic tongues cut from the M. E. HARKIN.

